Toward the Goal: The Kaká Story ($0.99 Kindle), by Jeremy V. Jones, is free from ChristianBook and discounted on Kindle, courtesy of Christian publisher Zonderkidz.

Book Description
I learnt that it is faith that decides whether something will happen or not.At the age of eight, Kaka already knew what it he wanted in life: to play soccer, and only soccer. He started playing in front of his friends and family, but when he suffered a crippling injury doctors told him he would never play again. Through faith and perseverance Kaka recovered, and today he plays in front of thousands of fans every year. As the 2007 FIFA World Player of the Year and winner of the Ballon d'Or, this midfielder for Real Madrid has become one of the most recognized faces on the soccer field.